Full Stack Engineer

About WTF

WTF is India's most ambitious fitness technology company — building a connected ecosystem of physical gyms, digital platforms, AI automation, and data-driven fitness intelligence.

We don't build
websites
or
apps
— we build
products that run a real business
: 500+ gyms, thousands of members, millions in transactions, and a full tech layer that powers everything.

We are replacing conventional developers with
AI-native builders
— people who can understand a business use case, think through logic, visualize architecture, and then write code that works, scales, and delights.

The Mindset We're Hiring

You're not the kind of person who asks "What's the API doc?"

You ask — "What's the user journey? What's the logic flow? How do we automate this?"

You're the kind who:

• Builds systems end-to-end without waiting for dependencies.
• Thinks in business logic before writing syntax.
• Uses AI tools daily to move 5x faster.
• Knows when to code, when to automate, and when to rethink the problem entirely.
• Cares about how products
  feel
  — not just how they run.

This role isn't about pushing commits; it's about
owning systems.

Your Core Responsibilities

1. Product Architecture & Ownership

• Take a
  business problem or feature request
  and translate it into complete architecture — backend, frontend, and database.
• Design data flows, user journeys, state management, and API logic.
• Build
  modular, future-proof systems
  — not code piles that need daily firefighting.
• Think edge cases, failure scenarios, and recovery flows before writing the first line.

2. Full Stack Execution

• Own both backend ) and frontend (React + TypeScript) — no handoffs.
• Design scalable APIs and data models on PostgreSQL; write migration-safe schemas.
• Implement real-time systems (Socket.IO, WebRTC, etc.) where needed.
• Manage local dev with SQLite and deploy to using proper environment configs.

3. AI-Native Engineering

• Use AI coding tools natively — Cursor, GitHub Copilot, Claude Code, etc.
• Integrate AI APIs (OpenAI, Together AI, Gemini, Bland AI, ElevenLabs) directly into workflows.
• Automate logic, workflows, or monitoring where AI makes sense — not as a gimmick, but as leverage.

4. Product Thinking & UX Awareness

• Collaborate with design and product only for direction — not dependencies.
• Think about
  how users will interact
  with your feature — not just what they'll click.
• Understand micro-interactions, loading states, and real-world behavior.
• Prototype logic in tools like or Figma and ship independently.

5. Cloud & Infra Responsibility

• Deploy and maintain systems on AWS (EC2, S3, RDS, CloudFront) or
• Handle production environments, backups, scaling, and uptime with confidence.
• Write secure, env-driven, production-ready configurations.
• Optimize for speed and cost, not comfort.

6. Culture & Speed

• Commit daily. Ship weekly. Automate everything.
• No blockers, no blame. You find solutions.
• Review code not for style, but for clarity, modularity, and reasoning.
• Mentor others to think like product engineers, not coders.

Tech Stack

• Frontend:
  React 18, TypeScript, Vite, Tailwind CSS, shadcn/ui, Framer Motion
• Backend:
  (Express), REST APIs, WebSockets, GraphQL (optional)
• Database:
  PostgreSQL (RDS), Prisma ORM, SQLite (local dev)
• Infra:
  AWS / / Docker (coming), GitHub CI/CD
• AI/Automation:
  OpenAI, Together AI, Gemini, Bland AI, , WWebJS
• Dev Environment:
  Cursor IDE, , GitHub Projects, Postman

What You'll Build (Examples of Real Work)

• WTF
  WhatsApp AI Bot
  — Node + React + Socket.IO dashboard.
• Recruitment & HRMS Platform
  — full-stack system for hiring and payroll.
• CCTV AI Compliance Engine
  — real-time video + AI analysis dashboard.
• Sales AI Bot Integration
  — live call intelligence with Bland AI.
• Revenue Intelligence CRM
  — unified system across gyms, leads, and retention.

Each of these is an actual live project — you'll own one from day one.

Who You Are

• 6–10 years of experience (startup or high-growth preferred).
• Strong command of JavaScript/TypeScript and modern frameworks.
• Experience building
  real products
  , not just projects.
• Ability to write clear logic for real-world use cases (not textbook code).
• Self-driven, outcome-oriented, and obsessed with clarity and detail.
• Passionate about automation, AI, and the future of tech-driven businesses.
• Excellent communication and documentation habits.

Performance Metrics

• Time-to-ship (not just commit frequency)
• Uptime, speed, and bug rate of owned modules
• AI-assisted velocity and reduction of manual code
• Independence in feature delivery
• Business impact of your build (measurable usage/adoption)

Why WTF

• Direct access to the Founder — no bureaucratic layers.
• Freedom to build products that affect real people daily.
• A culture that celebrates clarity, creativity, and execution speed.
• Real ownership — not tickets.
• The opportunity to
  define the architecture
  of India's fastest-growing fitness tech OS.

Apply If You're

• A builder, not a maintainer.
• A thinker, not a follower.
• Someone who can design, code, and deploy — end to end.
• Someone who wants to
  own systems
  , not fix bugs forever.